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Considering that PD-L2 and PD-L1 had different features in terms of expression timing and responses to chemotherapeutic drugs, evaluation of both PD-L2 and PD-L1 expression may be clinically important.BACKGROUND The small GTPase Ran is upregulated in multiple cancers and fundamental for cancer cell survival and progression, but its significance and molecular mechanisms in colorectal cancer (CRC) remain elusive. METHODS Ran expression was detected in CRC cell lines and tumour tissues. In vitro and in vivo functional assays were performed to examine the effects of Ran on cell proliferation and metastasis. The pathways and effectors regulated by Ran were explored by an unbiased screening. Bioinformatics prediction and experimental validation were used to identify the miRNA regulator for Ran. RESULTS Ran expression was frequently increased in metastatic CRC cells and tissues, especially in metastatic tissues. The upregulation of Ran correlated with poor CRC patient prognosis. Ran silencing reduced proliferation and metastasis of CRC cells both in vitro and in vivo. Ran regulated the expression of EGFR and activation of ERK and AKT signalling pathways. miR-802 was identified as an upstream regulator of Ran and miR-802 overexpression resulted in antiproliferative and antimetastatic activities. CONCLUSION Our study demonstrates the oncogenic roles and underlying mechanisms of Ran in CRC and the novel miR-802/Ran/EGFR regulatory axis may provide potential biomarkers for the treatment of CRC.BACKGROUND In 2018, the World Cancer Research Fund/American Institute for Cancer Research (WCRF/AICR) issued revised recommendations for cancer prevention. We examined the relation between adherence to these recommendations and risk of total cancer in two population-based Swedish prospective cohorts (29,451 men and 25,349 women). METHODS Standardized-WCRF/AICR 2018 and simplified-WCRF/AICR 2018 adherence scores were constructed based on the WCRF/AICR recommendations for body weight, physical activity, diet, alcohol consumption and dietary supplement use. Data were collected using a self-administered questionnaire. RESULTS During the 15.4 years of follow-up, 12,693 incident cancers were ascertained. https://www.selleckchem.com/products/pf-06826647.html The multivariable HR between extreme categories of the Standardized-WCRF/AICR 2018 score (4.1-7 vs. 0-2) was 0.88 (95% CI = 0.82-0.95) and for the Simplified score (5-8 vs. 0-2) was 0.85 (95% CI = 0.80-0.90); each 1-score increment in recommendation adherence was associated with 3% (95% CI = 1-5%) and 4% (95% CI = 2-5%) decreased risk, respectively. Based on the Simplified scoring, most participants (>90%) did not meet WCRF/AICR 2018 recommendations regarding consumption of plant foods, limited consumption of red/processed meat and 'fast food'/processed food, and less then 50% of participants met the weight and physical activity recommendations. CONCLUSIONS Adherence to the 2018WCRF/AICR recommendations substantially reduced the risk of total cancer. Given that many people do not meet the recommendations, there is a great potential for cancer prevention.BACKGROUND Carbonic anhydrase IX (CA IX) is a hypoxia-induced enzyme regulating tumour pH and facilitating cell migration/invasion. It is primarily expressed as a transmembrane cell-surface protein, but its ectodomain can be shed by ADAM17 to extracellular space. This study aims to elucidate the impact of CA IX shedding on cancer cells. METHODS We generated a non-shed CA IX mutant by deletion of amino acids 393-402 from the stalk region and studied its phenotypic effects compared to full-length, shedding-competent CA IX using a range of assays based on immunodetection, confocal microscopy, in vitro real-time cell monitoring and in vivo tumour cell inoculation using xenografted NMRI and C57BL/6J female ****. RESULTS We demonstrated that the impairment of shedding does not alter the ability of CA IX to bind ADAM17, internalise, form oligomers and regulate pH, but induces cancer-promoting changes in extracellular proteome. Moreover, it affects intrinsic properties of cells expressing the non-shed variant, in terms of their increased ability to migrate, generate primary tumours and form metastatic lesions in lungs. CONCLUSIONS Our results show that the ectodomain shedding controls pro-tumorigenic and pro-metastatic roles of the cell-associated CA IX and suggest that this phenomenon should be considered when developing CA IX-targeted therapeutic strategies.BACKGROUND The cancer vaccine Vx-001, which targets the universal tumour antigen TElomerase Reverse Transcriptase (TERT), can mount specific Vx-001/TERT572 CD8 + cytotoxic T cells; this immune response is associated with improved overall survival (OS) in patients with advanced/metastatic non-small cell lung cancer (NSCLC). METHODS A randomised, double blind, phase 2b trial, in HLA-A*201-positive patients with metastatic, TERT-expressing NSCLC, who did not progress after first-line platinum-based chemotherapy were randomised to receive either Vx-001 or placebo. The primary endpoint of the trial was OS. RESULTS Two hundred and twenty-one patients were randomised and 190 (101 and 89 patients in the placebo and the Vx-001 arm, respectively) were analysed for efficacy. There was not treatment-related toxicity >grade 2. The study did not meet its primary endpoint (median OS 11.3 and 14.3 months for the placebo and the Vx-001, respectively; p = 0.86) whereas the median Time to Treatment Failure (TTF) was 3.5 and 3.6 months, respectively. Disease control for >6months was observed in 30 (33.7%) and 26 (25.7%) patients treated with Vx-001 and placebo, respectively. There was no documented objective CR or PR. Long lasting TERT-specific immune response was observed in 29.2% of vaccinated patients who experienced a significantly longer OS compared to non-responders (21.3 and 13.4 months, respectively; p = 0.004). CONCLUSION Vx-001 could induce specific CD8+ immune response but failed to meet its primary endpoint. Subsequent studies have to be focused on the identification and treatment of subgroups of patients able to mount an effective immunological response to Vx-001. CLINICAL TRIAL REGISTRATION NCT01935154.
Considering that PD-L2 and PD-L1 had different features in terms of expression timing and responses to chemotherapeutic drugs, evaluation of both PD-L2 and PD-L1 expression may be clinically important.BACKGROUND The small GTPase Ran is upregulated in multiple cancers and fundamental for cancer cell survival and progression, but its significance and molecular mechanisms in colorectal cancer (CRC) remain elusive. METHODS Ran expression was detected in CRC cell lines and tumour tissues. In vitro and in vivo functional assays were performed to examine the effects of Ran on cell proliferation and metastasis. The pathways and effectors regulated by Ran were explored by an unbiased screening. Bioinformatics prediction and experimental validation were used to identify the miRNA regulator for Ran. RESULTS Ran expression was frequently increased in metastatic CRC cells and tissues, especially in metastatic tissues. The upregulation of Ran correlated with poor CRC patient prognosis. Ran silencing reduced proliferation and metastasis of CRC cells both in vitro and in vivo. Ran regulated the expression of EGFR and activation of ERK and AKT signalling pathways. miR-802 was identified as an upstream regulator of Ran and miR-802 overexpression resulted in antiproliferative and antimetastatic activities. CONCLUSION Our study demonstrates the oncogenic roles and underlying mechanisms of Ran in CRC and the novel miR-802/Ran/EGFR regulatory axis may provide potential biomarkers for the treatment of CRC.BACKGROUND In 2018, the World Cancer Research Fund/American Institute for Cancer Research (WCRF/AICR) issued revised recommendations for cancer prevention. We examined the relation between adherence to these recommendations and risk of total cancer in two population-based Swedish prospective cohorts (29,451 men and 25,349 women). METHODS Standardized-WCRF/AICR 2018 and simplified-WCRF/AICR 2018 adherence scores were constructed based on the WCRF/AICR recommendations for body weight, physical activity, diet, alcohol consumption and dietary supplement use. Data were collected using a self-administered questionnaire. RESULTS During the 15.4 years of follow-up, 12,693 incident cancers were ascertained. https://www.selleckchem.com/products/pf-06826647.html The multivariable HR between extreme categories of the Standardized-WCRF/AICR 2018 score (4.1-7 vs. 0-2) was 0.88 (95% CI = 0.82-0.95) and for the Simplified score (5-8 vs. 0-2) was 0.85 (95% CI = 0.80-0.90); each 1-score increment in recommendation adherence was associated with 3% (95% CI = 1-5%) and 4% (95% CI = 2-5%) decreased risk, respectively. Based on the Simplified scoring, most participants (>90%) did not meet WCRF/AICR 2018 recommendations regarding consumption of plant foods, limited consumption of red/processed meat and 'fast food'/processed food, and less then 50% of participants met the weight and physical activity recommendations. CONCLUSIONS Adherence to the 2018WCRF/AICR recommendations substantially reduced the risk of total cancer. Given that many people do not meet the recommendations, there is a great potential for cancer prevention.BACKGROUND Carbonic anhydrase IX (CA IX) is a hypoxia-induced enzyme regulating tumour pH and facilitating cell migration/invasion. It is primarily expressed as a transmembrane cell-surface protein, but its ectodomain can be shed by ADAM17 to extracellular space. This study aims to elucidate the impact of CA IX shedding on cancer cells. METHODS We generated a non-shed CA IX mutant by deletion of amino acids 393-402 from the stalk region and studied its phenotypic effects compared to full-length, shedding-competent CA IX using a range of assays based on immunodetection, confocal microscopy, in vitro real-time cell monitoring and in vivo tumour cell inoculation using xenografted NMRI and C57BL/6J female mice. RESULTS We demonstrated that the impairment of shedding does not alter the ability of CA IX to bind ADAM17, internalise, form oligomers and regulate pH, but induces cancer-promoting changes in extracellular proteome. Moreover, it affects intrinsic properties of cells expressing the non-shed variant, in terms of their increased ability to migrate, generate primary tumours and form metastatic lesions in lungs. CONCLUSIONS Our results show that the ectodomain shedding controls pro-tumorigenic and pro-metastatic roles of the cell-associated CA IX and suggest that this phenomenon should be considered when developing CA IX-targeted therapeutic strategies.BACKGROUND The cancer vaccine Vx-001, which targets the universal tumour antigen TElomerase Reverse Transcriptase (TERT), can mount specific Vx-001/TERT572 CD8 + cytotoxic T cells; this immune response is associated with improved overall survival (OS) in patients with advanced/metastatic non-small cell lung cancer (NSCLC). METHODS A randomised, double blind, phase 2b trial, in HLA-A*201-positive patients with metastatic, TERT-expressing NSCLC, who did not progress after first-line platinum-based chemotherapy were randomised to receive either Vx-001 or placebo. The primary endpoint of the trial was OS. RESULTS Two hundred and twenty-one patients were randomised and 190 (101 and 89 patients in the placebo and the Vx-001 arm, respectively) were analysed for efficacy. There was not treatment-related toxicity >grade 2. The study did not meet its primary endpoint (median OS 11.3 and 14.3 months for the placebo and the Vx-001, respectively; p = 0.86) whereas the median Time to Treatment Failure (TTF) was 3.5 and 3.6 months, respectively. Disease control for >6months was observed in 30 (33.7%) and 26 (25.7%) patients treated with Vx-001 and placebo, respectively. There was no documented objective CR or PR. Long lasting TERT-specific immune response was observed in 29.2% of vaccinated patients who experienced a significantly longer OS compared to non-responders (21.3 and 13.4 months, respectively; p = 0.004). CONCLUSION Vx-001 could induce specific CD8+ immune response but failed to meet its primary endpoint. Subsequent studies have to be focused on the identification and treatment of subgroups of patients able to mount an effective immunological response to Vx-001. CLINICAL TRIAL REGISTRATION NCT01935154.0 Comentários 0 Compartilhamentos 19 Visualizações 0 AnteriorFaça Login para curtir, compartilhar e comentar! -
Background and objectives Obstructive sleep apnea (OSA) is closely associated with insulin resistance (IR) and is an independent risk factor for incident type 2 diabetes mellitus (T2DM). Most studies evaluate the correlation between OSA and IR in only obese or T2DM patients. Therefore, we tried to investigate the effect of OSA on metabolic syndrome and IR in the general healthy male population. Materials and Methods 184 subjects who visited a preventive health examination program were recruited for this study. All subjects received overnight polysomnography by a portable device (Watch-PAT 200). We examined several metabolic parameters and a homeostasis model of assessment for insulin resistance index (HOMA-IR). The subjects were divided into three groups by AHI (Apnea-hyponea index) normal group (AHI less then 5), mild OSA group (5 ≤ AHI less then 15), and moderate-severe OSA group (AHI ≥ 15). They were also divided into two groups according to minimum oxygen saturation low group, Min-SpO2 less then 88%; and high group, Min-SpO2 ≥ 88%. Results Parameters of metabolic syndrome, including waist circumference, systolic and diastolic blood pressure, triglyceride, and high-density lipoprotein cholesterol showed significant differences among the AHI groups. Furthermore, HOMA-IR showed significant differences among the AHI groups. Those parameters, including metabolic syndrome and HOMA-IR, also showed differences between Min-SpO2 groups. Conclusions In summary, this study helps confirm that AHI is associated with HOMA-IR in the general male population. Furthermore, the severity of AHI correlated with the parameters of metabolic syndrome. Therefore, AHI might be an indicator for evaluating both T2DM and metabolic syndrome, even in the general male population.To investigate differences in hemodynamic, hormonal and heart rate variability parameters in women following complication-free pregnancies (healthy), preeclampsia and gestational diabetes mellitus (GDM) after giving childbirth. Data of 60 women (healthy n = 29, age 32.7 ± 4.5 years, BMI 24.2 ± 4.3 kg/m2; preeclampsia n = 16, age 35.3 ± 4.4 years, 28.5 ± 6.4 kg/m2; GDM, n = 15, age 32.3 ± 6.0 years, BMI 26.4 ± 6.2 kg/m2) were included. Two visits were conducted 16 and 48 weeks after giving childbirth. Hair samples were taken for analysis of cortisol and testosterone. ECG and blood pressure were recorded at each visit. Data were analyzed via RM-ANOVA and post-hoc testing (p ≤ 0.05). Heart rate increased from visit 1 to visit 2, whereas SDNN decreased (both p = 0.03). RMSSD showed an increased trend for groups (p = 0.06). Testosterone in the GDM group was significantly higher compared to the other groups (p = 0.002). Cortisol levels were significantly higher following post-hoc testing GDM was different compared to healthy individuals (p = 0.02). Hemodynamic changes from week 16 to week 48 did not differ between groups (p > 0.05). No differences between individuals with preeclampsia and healthy individuals were found for all hemodynamic parameters (p > 0.05). The study showed higher levels of chronic stress indicators in GDM measured via heart rate variability and cortisol compared to women with a history of preeclampsia and healthy women.The awareness among Saudi people regarding the good and safe practice of drug disposal is fairly low. Community pharmacists' potential toward drugs disposal directions and practice are not emphasized enough. Therefore, a cross sectional study was conducted in Riyadh, Saudi Arabia, to evaluate the practice, awareness and beliefs of community pharmacists about disposal of unused drugs. Out of 360 subjects who participated in the study, more than 70% returned the unused drugs to the pharmaceutical distributors. Around 80% of the participants confirmed the risk of environmental damage due to the inappropriate disposal of drugs, and 87.5% of them held themselves responsible for preventing such risk. Approximately 85% of surveyed pharmacists believed community pharmacies to be an appropriate location for the collection of unused drugs. There was no significant association between the community pharmacists' age group and years of practice as community pharmacists with either the awareness of unused medication disposal on environmental hazards, or the beliefs about the appropriate location for collecting unused drugs (p > 0.05). The awareness and proactive accountable responsibility, along with community pharmacists' belief of appointing pharmacies to collect unused drugs, strongly support the institution of drug take-**** programs.RASopathies are a group of developmental disorders caused by dominant mutations in genes that encode components of the Ras/mitogen-activated protein kinase (MAPK) cell signaling pathway. The goal of this study was to characterize the pathological phenotype of a Romagnola stillborn calf with skeletal-cardio-enteric dysplasia and to identify a genetic cause by whole-genome sequencing (WGS). The calf showed reduced fetal growth, a short-spine, a long and narrow face, cardiac defects and heterotopy of the spiral colon. Genetic analysis revealed a private heterozygous missense variant in MAP2K2p.Arg179Trp, located in the protein kinase domain in the calf, and not found in more than 4500 control genomes including its sire. The identified variant affecting a conserved residue was predicted to be deleterious and most likely occurred de novo. This represents the first example of a dominant acting, and most likely pathogenic, variant in MAP2K2 in domestic animals, thereby providing the first MAP2K2-related large animal model, especially in respect to the enteric malformation. In addition, this study demonstrates the utility of WGS-based precise diagnostics for understanding sporadic congenital syndromic anomalies in cattle and the general utility of continuous surveillance for rare hereditary defects in cattle.Pituitary adenomas count among the most common intracranial tumors. https://www.selleckchem.com/products/kt-474.html During pituitary oncogenesis structural, textural, metabolic and molecular changes occur which can be revealed with our integrated ultrahigh-resolution multimodal imaging approach including optical coherence tomography (OCT), multiphoton microscopy (MPM) and line scan Raman microspectroscopy (LSRM) on an unprecedented cellular level in a label-free manner. We investigated 5 pituitary gland and 25 adenoma biopsies, including lactotroph, null cell, gonadotroph, somatotroph and mammosomatotroph as well as corticotroph. First-level binary classification for discrimination of pituitary gland and adenomas was performed by feature extraction via radiomic analysis on OCT and MPM images and achieved an accuracy of 88%. Second-level multi-class classification was performed based on molecular analysis of the specimen via LSRM to discriminate pituitary adenomas subtypes with accuracies of up to 99%. Chemical compounds such as lipids, proteins, collagen, DNA and carotenoids and their relation could be identified as relevant biomarkers, and their spatial distribution visualized to provide deeper insight into the chemical properties of pituitary adenomas.
Background and objectives Obstructive sleep apnea (OSA) is closely associated with insulin resistance (IR) and is an independent risk factor for incident type 2 diabetes mellitus (T2DM). Most studies evaluate the correlation between OSA and IR in only obese or T2DM patients. Therefore, we tried to investigate the effect of OSA on metabolic syndrome and IR in the general healthy male population. Materials and Methods 184 subjects who visited a preventive health examination program were recruited for this study. All subjects received overnight polysomnography by a portable device (Watch-PAT 200). We examined several metabolic parameters and a homeostasis model of assessment for insulin resistance index (HOMA-IR). The subjects were divided into three groups by AHI (Apnea-hyponea index) normal group (AHI less then 5), mild OSA group (5 ≤ AHI less then 15), and moderate-severe OSA group (AHI ≥ 15). They were also divided into two groups according to minimum oxygen saturation low group, Min-SpO2 less then 88%; and high group, Min-SpO2 ≥ 88%. Results Parameters of metabolic syndrome, including waist circumference, systolic and diastolic blood pressure, triglyceride, and high-density lipoprotein cholesterol showed significant differences among the AHI groups. Furthermore, HOMA-IR showed significant differences among the AHI groups. Those parameters, including metabolic syndrome and HOMA-IR, also showed differences between Min-SpO2 groups. Conclusions In summary, this study helps confirm that AHI is associated with HOMA-IR in the general male population. Furthermore, the severity of AHI correlated with the parameters of metabolic syndrome. Therefore, AHI might be an indicator for evaluating both T2DM and metabolic syndrome, even in the general male population.To investigate differences in hemodynamic, hormonal and heart rate variability parameters in women following complication-free pregnancies (healthy), preeclampsia and gestational diabetes mellitus (GDM) after giving childbirth. Data of 60 women (healthy n = 29, age 32.7 ± 4.5 years, BMI 24.2 ± 4.3 kg/m2; preeclampsia n = 16, age 35.3 ± 4.4 years, 28.5 ± 6.4 kg/m2; GDM, n = 15, age 32.3 ± 6.0 years, BMI 26.4 ± 6.2 kg/m2) were included. Two visits were conducted 16 and 48 weeks after giving childbirth. Hair samples were taken for analysis of cortisol and testosterone. ECG and blood pressure were recorded at each visit. Data were analyzed via RM-ANOVA and post-hoc testing (p ≤ 0.05). Heart rate increased from visit 1 to visit 2, whereas SDNN decreased (both p = 0.03). RMSSD showed an increased trend for groups (p = 0.06). Testosterone in the GDM group was significantly higher compared to the other groups (p = 0.002). Cortisol levels were significantly higher following post-hoc testing GDM was different compared to healthy individuals (p = 0.02). Hemodynamic changes from week 16 to week 48 did not differ between groups (p > 0.05). No differences between individuals with preeclampsia and healthy individuals were found for all hemodynamic parameters (p > 0.05). The study showed higher levels of chronic stress indicators in GDM measured via heart rate variability and cortisol compared to women with a history of preeclampsia and healthy women.The awareness among Saudi people regarding the good and safe practice of drug disposal is fairly low. Community pharmacists' potential toward drugs disposal directions and practice are not emphasized enough. Therefore, a cross sectional study was conducted in Riyadh, Saudi Arabia, to evaluate the practice, awareness and beliefs of community pharmacists about disposal of unused drugs. Out of 360 subjects who participated in the study, more than 70% returned the unused drugs to the pharmaceutical distributors. Around 80% of the participants confirmed the risk of environmental damage due to the inappropriate disposal of drugs, and 87.5% of them held themselves responsible for preventing such risk. Approximately 85% of surveyed pharmacists believed community pharmacies to be an appropriate location for the collection of unused drugs. There was no significant association between the community pharmacists' age group and years of practice as community pharmacists with either the awareness of unused medication disposal on environmental hazards, or the beliefs about the appropriate location for collecting unused drugs (p > 0.05). The awareness and proactive accountable responsibility, along with community pharmacists' belief of appointing pharmacies to collect unused drugs, strongly support the institution of drug take-back programs.RASopathies are a group of developmental disorders caused by dominant mutations in genes that encode components of the Ras/mitogen-activated protein kinase (MAPK) cell signaling pathway. The goal of this study was to characterize the pathological phenotype of a Romagnola stillborn calf with skeletal-cardio-enteric dysplasia and to identify a genetic cause by whole-genome sequencing (WGS). The calf showed reduced fetal growth, a short-spine, a long and narrow face, cardiac defects and heterotopy of the spiral colon. Genetic analysis revealed a private heterozygous missense variant in MAP2K2p.Arg179Trp, located in the protein kinase domain in the calf, and not found in more than 4500 control genomes including its sire. The identified variant affecting a conserved residue was predicted to be deleterious and most likely occurred de novo. This represents the first example of a dominant acting, and most likely pathogenic, variant in MAP2K2 in domestic animals, thereby providing the first MAP2K2-related large animal model, especially in respect to the enteric malformation. In addition, this study demonstrates the utility of WGS-based precise diagnostics for understanding sporadic congenital syndromic anomalies in cattle and the general utility of continuous surveillance for rare hereditary defects in cattle.Pituitary adenomas count among the most common intracranial tumors. https://www.selleckchem.com/products/kt-474.html During pituitary oncogenesis structural, textural, metabolic and molecular changes occur which can be revealed with our integrated ultrahigh-resolution multimodal imaging approach including optical coherence tomography (OCT), multiphoton microscopy (MPM) and line scan Raman microspectroscopy (LSRM) on an unprecedented cellular level in a label-free manner. We investigated 5 pituitary gland and 25 adenoma biopsies, including lactotroph, null cell, gonadotroph, somatotroph and mammosomatotroph as well as corticotroph. First-level binary classification for discrimination of pituitary gland and adenomas was performed by feature extraction via radiomic analysis on OCT and MPM images and achieved an accuracy of 88%. Second-level multi-class classification was performed based on molecular analysis of the specimen via LSRM to discriminate pituitary adenomas subtypes with accuracies of up to 99%. Chemical compounds such as lipids, proteins, collagen, DNA and carotenoids and their relation could be identified as relevant biomarkers, and their spatial distribution visualized to provide deeper insight into the chemical properties of pituitary adenomas.0 Comentários 0 Compartilhamentos 25 Visualizações 0 Anterior -
2%; White, 77.7%; mean age, 64.2years). Of the 775 patients who completed the CAA question, almost one-third responded that they "agree" (18%) or "completely agree" (11%), while 27% responded "completely disagree" and 20% "disagree." Regression analyses found that patients who have concerns about medication addiction have significantly different EQ-5D-5L index values and EQ VAS scores compared with patients who do not have this concern (p < 0.0001).
Our findings suggest that concern about medication addiction in patients with OA may have an impact on patient HRQoL, with more concerned patients reporting poorer HRQoL outcomes.
Our findings suggest that concern about medication addiction in patients with OA may have an impact on patient HRQoL, with more concerned patients reporting poorer HRQoL outcomes.Wounds are damaging to quality life of confined animals, causing dysfunction in spinal, members injuries, and reduction in productive performance. This research investigated the clove antimicrobial and antioxidant activity on the healing of decubitus wounds (pododermatitis) of rabbits (Oryctolagus cuniculus). Adult animals were treated for 21 days every three days with a fluid gel spray in the wound region control fluid gel without addition of clove (FGC0), fluid gel with addition of 1% clove powder (FGC1), and fluid gel with 2% clove powder (FGC2). Microbiological analysis for Escherichia coli and Pseudomonas spp. were performed during 21 days of experimental period. After this period, samples from treated skin were evaluated for histological analysis and evaluation of the healing process by spectroscopy (FTIR-ATR). Rabbits treated with FGC2 showed advanced healing and decreased tissue inflammation similar to healthy rabbits, while FGC0 rabbits showed a decrease in bacterial contamination without signs of healing. Both FGC1 and FGC2 rabbits demonstrated antimicrobial and antioxidant action against both bacteria tested, favoring the wound healing process. Considering the results, the use of fluid gel with 2% of clove powder (Syzigium aromaticum) based on the best antimicrobial, antioxidant and anti-inflammatory activities on healing of decubitus wounds (pododermatitis) of rabbits in commercial farming system.
Induced hypernatremia and hyperosmolarity is protective in animal models of lung injury. We hypothesized that increasing and maintaining plasma sodium between 145 and 150mmol/l in patients with moderate-to-severe ARDS would be safe and will reduce lung injury. This was a prospective randomized feasibility study in moderate-to-severe ARDS, comparing standard care with intravenous hypertonic saline to achieve and maintain plasma sodium between 145 and 150mmol/l for 7days (HTS group). Both groups of patients were managed with lung protective ventilation and conservative fluid management. The primary outcome was 1-point reduction in lung injury score (LIS) or successful extubation by day 7.
Forty patients were randomized with 20 in each group. Baseline characteristics of severity of illness were well balanced. Patients in the HTS group had higher plasma sodium levels during the first 7days after randomization when compared with the control group (p = 0.04). Seventy five percent (15/20) of patients in the HTS group were extubated or had ≥ 1-point reduction in LIS compared with 35% (7/20) in the control group (p = 0.02). There was also a decrease in length of mechanical ventilation and hospital length of stay in the HTS group.
We have shown clinical improvement in patients with moderate-to-severe ARDS following induced hypernatremia, suggesting that administration of hypertonic saline is a safe and feasible intervention in patients with moderate-to-severe ARDS. This suggests progress to a phase II study. Clinical Trial Registration Australian and New Zealand Clinical Trials Registry (ACTRN12615001282572).
We have shown clinical improvement in patients with moderate-to-severe ARDS following induced hypernatremia, suggesting that administration of hypertonic saline is a safe and feasible intervention in patients with moderate-to-severe ARDS. This suggests progress to a phase II study. Clinical Trial Registration Australian and New Zealand Clinical Trials Registry (ACTRN12615001282572).Toxoplasma gondii can cross the blood-brain barrier and infect different regions of the brain including the hippocampus. In the present study, we examined the impact of Toxoplasma gondii infection on the metabolism of the hippocampus of female BALB/c **** compared to control **** using ultra-high-performance liquid chromatography-tandem mass spectrometry. Multivariate analysis revealed significant differences between infected and control hippocampi and identified 25, 82, and 105 differential metabolites (DMs) in the infected hippocampi at 7, 14, and 21 days post-infection (dpi), respectively. One DM (sphingosyl-phosphocholine in the sphingolipid metabolism pathway) and 11 dysregulated pathways were detected at all time points post-infection, suggesting their important roles in the neuropathogenesis of T. gondii infection. These pathways were related to neural activity, such as inflammatory mediator regulation of TRP channels, retrograde endocannabinoid signaling, and arachidonic acid metabolism. Weighted correlation network analysis and receiver operating characteristic analysis identified 33 metabolites significantly associated with T. gondii infection in the hippocampus, and 30 of these were deemed as potential biomarkers for T. gondii infection. This study provides, for the first time, a global view of the metabolic perturbations that occur in the mouse hippocampus during T. gondii infection. The potential relevance of the identified metabolites and pathways to the pathogenesis of cognitive impairment and psychiatric disorders are discussed.Babesia orientalis, belonging to the phylum Apicomplexa, is mainly accountable for water buffalo babesiosis, which adversely affected the livestock industry in China. https://www.selleckchem.com/products/bi-1347.html Variant erythrocyte surface antigen-1 (VESA1), an antigen that helps infected erythrocytes to escape from host immune responses, was first reported in Babesia bovis. Various VESA1 proteins have also been characterized in other Babesia species. Nevertheless, there is no research on the identification and characterization of VESA1 proteins in Babesia orientalis. In this study, the BoVESA1 gene was amplified from both gDNA and cDNA. The results revealed that it is an intronless gene with a full length of 753 bp, encoding a protein of 250 amino acids with a predicted molecular weight of 28 kDa. The coding sequence (CDS) was cloned into the pGEX-6p-1 vector using a homologous recombination kit and expressed as a glutathione-S-transferase (GST)-fusion protein with a molecular weight of 53 kDa. The tertiary structure of BoVESA1 was predicted using the I-TASSER software.
2%; White, 77.7%; mean age, 64.2years). Of the 775 patients who completed the CAA question, almost one-third responded that they "agree" (18%) or "completely agree" (11%), while 27% responded "completely disagree" and 20% "disagree." Regression analyses found that patients who have concerns about medication addiction have significantly different EQ-5D-5L index values and EQ VAS scores compared with patients who do not have this concern (p < 0.0001). Our findings suggest that concern about medication addiction in patients with OA may have an impact on patient HRQoL, with more concerned patients reporting poorer HRQoL outcomes. Our findings suggest that concern about medication addiction in patients with OA may have an impact on patient HRQoL, with more concerned patients reporting poorer HRQoL outcomes.Wounds are damaging to quality life of confined animals, causing dysfunction in spinal, members injuries, and reduction in productive performance. This research investigated the clove antimicrobial and antioxidant activity on the healing of decubitus wounds (pododermatitis) of rabbits (Oryctolagus cuniculus). Adult animals were treated for 21 days every three days with a fluid gel spray in the wound region control fluid gel without addition of clove (FGC0), fluid gel with addition of 1% clove powder (FGC1), and fluid gel with 2% clove powder (FGC2). Microbiological analysis for Escherichia coli and Pseudomonas spp. were performed during 21 days of experimental period. After this period, samples from treated skin were evaluated for histological analysis and evaluation of the healing process by spectroscopy (FTIR-ATR). Rabbits treated with FGC2 showed advanced healing and decreased tissue inflammation similar to healthy rabbits, while FGC0 rabbits showed a decrease in bacterial contamination without signs of healing. Both FGC1 and FGC2 rabbits demonstrated antimicrobial and antioxidant action against both bacteria tested, favoring the wound healing process. Considering the results, the use of fluid gel with 2% of clove powder (Syzigium aromaticum) based on the best antimicrobial, antioxidant and anti-inflammatory activities on healing of decubitus wounds (pododermatitis) of rabbits in commercial farming system. Induced hypernatremia and hyperosmolarity is protective in animal models of lung injury. We hypothesized that increasing and maintaining plasma sodium between 145 and 150mmol/l in patients with moderate-to-severe ARDS would be safe and will reduce lung injury. This was a prospective randomized feasibility study in moderate-to-severe ARDS, comparing standard care with intravenous hypertonic saline to achieve and maintain plasma sodium between 145 and 150mmol/l for 7days (HTS group). Both groups of patients were managed with lung protective ventilation and conservative fluid management. The primary outcome was 1-point reduction in lung injury score (LIS) or successful extubation by day 7. Forty patients were randomized with 20 in each group. Baseline characteristics of severity of illness were well balanced. Patients in the HTS group had higher plasma sodium levels during the first 7days after randomization when compared with the control group (p = 0.04). Seventy five percent (15/20) of patients in the HTS group were extubated or had ≥ 1-point reduction in LIS compared with 35% (7/20) in the control group (p = 0.02). There was also a decrease in length of mechanical ventilation and hospital length of stay in the HTS group. We have shown clinical improvement in patients with moderate-to-severe ARDS following induced hypernatremia, suggesting that administration of hypertonic saline is a safe and feasible intervention in patients with moderate-to-severe ARDS. This suggests progress to a phase II study. Clinical Trial Registration Australian and New Zealand Clinical Trials Registry (ACTRN12615001282572). We have shown clinical improvement in patients with moderate-to-severe ARDS following induced hypernatremia, suggesting that administration of hypertonic saline is a safe and feasible intervention in patients with moderate-to-severe ARDS. This suggests progress to a phase II study. Clinical Trial Registration Australian and New Zealand Clinical Trials Registry (ACTRN12615001282572).Toxoplasma gondii can cross the blood-brain barrier and infect different regions of the brain including the hippocampus. In the present study, we examined the impact of Toxoplasma gondii infection on the metabolism of the hippocampus of female BALB/c mice compared to control mice using ultra-high-performance liquid chromatography-tandem mass spectrometry. Multivariate analysis revealed significant differences between infected and control hippocampi and identified 25, 82, and 105 differential metabolites (DMs) in the infected hippocampi at 7, 14, and 21 days post-infection (dpi), respectively. One DM (sphingosyl-phosphocholine in the sphingolipid metabolism pathway) and 11 dysregulated pathways were detected at all time points post-infection, suggesting their important roles in the neuropathogenesis of T. gondii infection. These pathways were related to neural activity, such as inflammatory mediator regulation of TRP channels, retrograde endocannabinoid signaling, and arachidonic acid metabolism. Weighted correlation network analysis and receiver operating characteristic analysis identified 33 metabolites significantly associated with T. gondii infection in the hippocampus, and 30 of these were deemed as potential biomarkers for T. gondii infection. This study provides, for the first time, a global view of the metabolic perturbations that occur in the mouse hippocampus during T. gondii infection. The potential relevance of the identified metabolites and pathways to the pathogenesis of cognitive impairment and psychiatric disorders are discussed.Babesia orientalis, belonging to the phylum Apicomplexa, is mainly accountable for water buffalo babesiosis, which adversely affected the livestock industry in China. https://www.selleckchem.com/products/bi-1347.html Variant erythrocyte surface antigen-1 (VESA1), an antigen that helps infected erythrocytes to escape from host immune responses, was first reported in Babesia bovis. Various VESA1 proteins have also been characterized in other Babesia species. Nevertheless, there is no research on the identification and characterization of VESA1 proteins in Babesia orientalis. In this study, the BoVESA1 gene was amplified from both gDNA and cDNA. The results revealed that it is an intronless gene with a full length of 753 bp, encoding a protein of 250 amino acids with a predicted molecular weight of 28 kDa. The coding sequence (CDS) was cloned into the pGEX-6p-1 vector using a homologous recombination kit and expressed as a glutathione-S-transferase (GST)-fusion protein with a molecular weight of 53 kDa. The tertiary structure of BoVESA1 was predicted using the I-TASSER software.0 Comentários 0 Compartilhamentos 18 Visualizações 0 Anterior -
The article presents characteristics of the dynamic component of postural balance and its features in elderly women with postural deficit. The assessment of the dynamic component of postural balance was performed on a computer stabilometric complex «Balance Manager» in women aged 60-74 with and without a history of falls. The most significant changes are manifested by an increase in the time of implementation and a decrease in the effectiveness of performing complex motor acts. In the factor structure of indicators of the dynamic component of postural balance in postural deficit, the leading factor is the factor that characterizes speed and power indicators in the implementation of complex motor acts. The study of the dynamic component of postural balance is recommended to be included in the comprehensive diagnosis of walking disorders in the elderly and in evaluating the effectiveness of treatment and rehabilitation measures.The article proves that when providing medical and social care to patients of older age groups, it is advisable to pay attention not only to the patients' somatic and geriatric status, but also to perform screening of local geriatric syndromes that affect the patients' functional status, such as, in particular, aging foot syndrome. Implementation of rehabilitation treatment measures that we propose allows to maintain the patients' mobility level and consequently their general functional capability level and quality of life.The introduction and scientific substantiation of methods for organizing sports events with optimal motor loads for citizens of middle and senior age groups should be based on two principles general (pedagogical) principles of physical education and sports training, adapted to the specifics of health-related training; analysis of physiological and psychophysiological effects that are created by physical activity of various types and directions in the human body. The importance of this topic is due to the fact that knee injuries occupy a special place in the sports of veterans, and severe injuries and injuries in this area can restrict an athlete in his professional activities. The problem of rehabilitation of athletes of older age groups with knee injuries is not only a medical problem, but also has an important socio-economic significance. The results obtained in the work will make it possible to more objectively approach the creation and implementation of rehabilitation treatment programs without surgical interventions. Therefore, the assessment of the effectiveness of the complex of medical gymnastics for the rehabilitation and prevention of traumatic injuries of the knee joint (ICD-10 S80.83, M17.23, M94.2) in comparison with the traditionally used exercise therapy exercises for patients of older age groups on the first stage of rehabilitation treatment is an urgent task.The most common treatment for menopausal syndrome is menopausal hormone therapy (MHT), however, the safety of MHT, due to the risk of developing and recurrent breast cancer (**), is still a matter of debate. The review presents the results of randomized cohort studies of this issue. It has been shown that MHT increases the risk of developing of breast cancer and disease recurrence after treatment. Risk of breast cancer developing in women getting MHT, depends on body mass index (BMI), duration of hormone use and dose of drugs, and is greater in thin women comparing with women with increased BMI, and also greater in estrogen-progestin combined MHT users comparing with estrogen-only users. It was found that in women using MHT hormone-dependent forms of cancer developed more often, but by the time of diagnosis, disease was found in more advanced stage and metastases in lymph nodes were found more often comparing with patients who did not use MHT. Risk of breast cancer recurrence is less with the use of low doses of vaginal estrogen. An alternative option for the relief of menopausal disorders in breast cancer patients during and after treatment is using of pineal gland hormone melatonin, since, along with its anti-aging properties, it is able to suppress cancer at the stages of initiation, progression and metastasis and has the ability to reduce the toxic effects of anticancer drugs while increasing their effectiveness.The aim of the study was to study the frequency and features of albuminuria in patients with chronic bronchoobstructive lung diseases. The prospective study involved 219 patients with COPD (GOLD 1-4) and 201 patients with persistent bronchial asthma (BA) of varying severity, who were examined in 2018-2019. The control group consisted of 48 volunteers, comparable in age and gender. In addition to General clinical studies, all patients were calculated BMI and visceral obesity detection based on the waist-hip ratio (WHR), and the Smoking index (HCI) was calculated. Albuminuria was determined based on the calculation of the albumin / creatinine ratio in a single morning portion of urine. The frequency of optimal / slightly elevated AU (A1) was 28,7% (63) among COPD patients and 9% (18) of BA patients. https://www.selleckchem.com/products/R406.html The number of COPD patients with clinically significant AU (A2, A3) was 24,2% (53) of patients, which is statistically significantly higher than among BA patients (5,5% of patients; χ2=22,3, p=0,01). The factors that make a statistically significant contribution to the development of AU in patients with COPD were the frequency of exacerbations over the previous 12 months, ICP, fibrinogen and CRP levels, FEV1; in BA patients - WHR, ICP. Smoking contributes to the development and potentiation of renal dysfunction in patients with bronchial obstructive diseases. The issue of considering BA as a risk factor for renal dysfunction remains controversial, given the diversity of BA both in terms of disease phenotypes, severity, and variety of therapeutic approaches.Airway patency during ENT surgery in general anesthesia is a serious problem. It is important to manage the degree of intraoperative bleeding to improve the visibility of the surgical site and reduce the risk of complications. Airway management may affect the severity of intraoperative bleeding. We have shown that the use of a laryngeal mask during endoscopic endonasal rhinosinus surgery during general anesthesia reduces the severity of the hemodynamic response, which is expressed in an increase in heart rate, mean arterial pressure and intraoperative bleeding, and also reduces the risk of surgery.
The article presents characteristics of the dynamic component of postural balance and its features in elderly women with postural deficit. The assessment of the dynamic component of postural balance was performed on a computer stabilometric complex «Balance Manager» in women aged 60-74 with and without a history of falls. The most significant changes are manifested by an increase in the time of implementation and a decrease in the effectiveness of performing complex motor acts. In the factor structure of indicators of the dynamic component of postural balance in postural deficit, the leading factor is the factor that characterizes speed and power indicators in the implementation of complex motor acts. The study of the dynamic component of postural balance is recommended to be included in the comprehensive diagnosis of walking disorders in the elderly and in evaluating the effectiveness of treatment and rehabilitation measures.The article proves that when providing medical and social care to patients of older age groups, it is advisable to pay attention not only to the patients' somatic and geriatric status, but also to perform screening of local geriatric syndromes that affect the patients' functional status, such as, in particular, aging foot syndrome. Implementation of rehabilitation treatment measures that we propose allows to maintain the patients' mobility level and consequently their general functional capability level and quality of life.The introduction and scientific substantiation of methods for organizing sports events with optimal motor loads for citizens of middle and senior age groups should be based on two principles general (pedagogical) principles of physical education and sports training, adapted to the specifics of health-related training; analysis of physiological and psychophysiological effects that are created by physical activity of various types and directions in the human body. The importance of this topic is due to the fact that knee injuries occupy a special place in the sports of veterans, and severe injuries and injuries in this area can restrict an athlete in his professional activities. The problem of rehabilitation of athletes of older age groups with knee injuries is not only a medical problem, but also has an important socio-economic significance. The results obtained in the work will make it possible to more objectively approach the creation and implementation of rehabilitation treatment programs without surgical interventions. Therefore, the assessment of the effectiveness of the complex of medical gymnastics for the rehabilitation and prevention of traumatic injuries of the knee joint (ICD-10 S80.83, M17.23, M94.2) in comparison with the traditionally used exercise therapy exercises for patients of older age groups on the first stage of rehabilitation treatment is an urgent task.The most common treatment for menopausal syndrome is menopausal hormone therapy (MHT), however, the safety of MHT, due to the risk of developing and recurrent breast cancer (BC), is still a matter of debate. The review presents the results of randomized cohort studies of this issue. It has been shown that MHT increases the risk of developing of breast cancer and disease recurrence after treatment. Risk of breast cancer developing in women getting MHT, depends on body mass index (BMI), duration of hormone use and dose of drugs, and is greater in thin women comparing with women with increased BMI, and also greater in estrogen-progestin combined MHT users comparing with estrogen-only users. It was found that in women using MHT hormone-dependent forms of cancer developed more often, but by the time of diagnosis, disease was found in more advanced stage and metastases in lymph nodes were found more often comparing with patients who did not use MHT. Risk of breast cancer recurrence is less with the use of low doses of vaginal estrogen. An alternative option for the relief of menopausal disorders in breast cancer patients during and after treatment is using of pineal gland hormone melatonin, since, along with its anti-aging properties, it is able to suppress cancer at the stages of initiation, progression and metastasis and has the ability to reduce the toxic effects of anticancer drugs while increasing their effectiveness.The aim of the study was to study the frequency and features of albuminuria in patients with chronic bronchoobstructive lung diseases. The prospective study involved 219 patients with COPD (GOLD 1-4) and 201 patients with persistent bronchial asthma (BA) of varying severity, who were examined in 2018-2019. The control group consisted of 48 volunteers, comparable in age and gender. In addition to General clinical studies, all patients were calculated BMI and visceral obesity detection based on the waist-hip ratio (WHR), and the Smoking index (HCI) was calculated. Albuminuria was determined based on the calculation of the albumin / creatinine ratio in a single morning portion of urine. The frequency of optimal / slightly elevated AU (A1) was 28,7% (63) among COPD patients and 9% (18) of BA patients. https://www.selleckchem.com/products/R406.html The number of COPD patients with clinically significant AU (A2, A3) was 24,2% (53) of patients, which is statistically significantly higher than among BA patients (5,5% of patients; χ2=22,3, p=0,01). The factors that make a statistically significant contribution to the development of AU in patients with COPD were the frequency of exacerbations over the previous 12 months, ICP, fibrinogen and CRP levels, FEV1; in BA patients - WHR, ICP. Smoking contributes to the development and potentiation of renal dysfunction in patients with bronchial obstructive diseases. The issue of considering BA as a risk factor for renal dysfunction remains controversial, given the diversity of BA both in terms of disease phenotypes, severity, and variety of therapeutic approaches.Airway patency during ENT surgery in general anesthesia is a serious problem. It is important to manage the degree of intraoperative bleeding to improve the visibility of the surgical site and reduce the risk of complications. Airway management may affect the severity of intraoperative bleeding. We have shown that the use of a laryngeal mask during endoscopic endonasal rhinosinus surgery during general anesthesia reduces the severity of the hemodynamic response, which is expressed in an increase in heart rate, mean arterial pressure and intraoperative bleeding, and also reduces the risk of surgery.0 Comentários 0 Compartilhamentos 18 Visualizações 0 Anterior -
05). On the other hand, chickens fed the Gln showed improved the relative weight of spleen and bursa, increased the lymphocyte percentage, number of proliferation peripheral blood T and B lymphocytes, and decreased the heterophil percentage, H/L ratio, and immune relevant gene expression in the jejunal and ileal mucosa compared with the measurements of these parameters in the SCC group (p less then 0.05). https://www.selleckchem.com/products/abtl-0812.html These results suggest that Gln as a feed additive could be effective for reducing the detrimental effects of Salmonella Enteritidis infection, and increase the intestinal immune barrier function of broilers.To determine if Cu injection during late gestation can affect fetal and postnatal growth, hematology and immune function of progeny, 70 multiparous pregnant Angus cows, at 219 ± 15 d of gestation, were ranked by BW and BCS and randomly assigned to one of two treatments Cu + (n = 35) in total 160 mg of Cu were administered subcutaneously in two moments (80 mg per moment) at 64 ± 15 d and 54 ± 15 d prepartum; and Cu- (n = 35), in total of 16 ml of sterile NaCl solution (9 g / l) were administered subcutaneously in two moments (8 ml per moment) at 64 ± 15 d and 54 ± 15 d prepartum. Calves from both treatments were weaned at 260 ± 15 d of age, male calves were separated from female calves and stockered on natural pastures until 690 ± 15 d of age, then placed into a feedlot for 104 d before slaughter. At the beginning of the experiment, cows Cu serum concentration was similar (P = 0.34) between treatments and these reflected a severe Cu deficiency (Cu + = 24.2 ± 1.5 μg/dl; Cu- = 22.2 ± 1.4 μg/dl). At calving, Cu serum concentration was greater (P 0.10) by treatments. In summary, inorganic Cu injection during late gestation in Cu deficient beef cows allows to increase Cu serum concentration in calves from birth to 160 d of age. This event was associated with an increase in ADG and a tendency to increase BW during the first 75 days of life. After 75 days of age, any effect on the offspring performance was not observed.Degeneration of the intervertebral disc (IVD) is associated with significant biochemical and morphological changes that include a loss of disc height, decreased water content and decreased cellularity. Cell delivery has been widely explored as a strategy to supplement the nucleus pulposus (NP) region of the degenerated IVD in both pre-clinical and clinical trials, using progenitor or primary cell sources. We previously demonstrated an ability for a polymer-peptide hydrogel, serving as a culture substrate, to promote adult NP cells to undergo a shift from a degenerative fibroblast-like state to a juvenile-like NP phenotype. In the current study, we evaluate the ability for this peptide-functionalized hydrogel to serve as a bioactive system for cell delivery, retention and preservation of a biosynthetic phenotype for primary IVD cells delivered to the rat caudal disc in an anular puncture degeneration model. Our data suggest that encapsulation of adult degenerative human NP cells in a stiff formulation of the hues in order to promote phenotypic expression and increase biosynthetic activity. The use of the in situ crosslinkable material integrated with the native IVD, presenting a system with adequate physical properties to support a degenerative disc.
Aortic valve stenosis (AS) is a common, lethal cardiovascular disease. There is no cure except the valve replacement at last stage. Therefore, an understanding of the detail mechanism is imperative to prevent and intervene AS. Metabolic syndrome (MetS) is one of the major risk factors of AS whereas fructose overconsuming tops the list of MetS risk factors. However, whether the fructose under physiological level induces AS is currently unknown.
The human valve interstitial cells (hVICs), a crucial source to develop calcification, were co-incubated with fructose at 2 or 20 mM to mimic the serum fructose at fasting or post-fructose consumption, respectively, for 24 hours. The cell proliferation was evaluated by WST-1 assays. The expressions of osteogenic and fibrotic proteins, PI3K/AKT signaling, insulin receptor substrate 1 and mitochondrial dynamic proteins were detected by Western blot analyses. The mitochondrial oxidative phosphorylation (OXPHOS) was examined by Seahorse analyzer.
hVICs proliferation wect on the progression of AS.
Traumatic brain injury (TBI) is a global public health problem, causing long-term burden to patients and caregivers. Patients and their families often resort to seeking online information regarding TBI management while awaiting formal health care consultations. Although this information is accessible and immediately available, little is known about the quality of online resources. We evaluated the accessibility, relevance, and readability of information regarding TBI from major online search engines.
TBI-related search terms were entered into 2 online search engines (Google and Yahoo), and the first 30 websites per search were assessed for eligibility. Quality (DISCERN score, JAMA Benchmark score) and readability (Flesch-Kincaid Grade Level, Flesch Reading Ease Score) were assessed. Associations between search ranking, quality, and readability were evaluated.
In total, 202 websites were evaluated with mean DISCERN score 36.5 ± 9.9/80, signifying poor global quality, and mean JAMA Benchmark score 2.8 ± 1.1/4. The majority required 9-12 years of education (113/202; 55.9%) according to Flesch-Kincaid Grade Level and categorized as "Difficult" on Flesch Reading Ease Score (94/202; 46.5%). Website quality was not associated with search ranking or readability.
There is a paucity of high-quality online resources for patients with TBI. Herein, we highlight 1) the importance of guidance from healthcare professionals regarding online-information seeking; and 2) recommendations for the most useful online resources available.
There is a paucity of high-quality online resources for patients with TBI. Herein, we highlight 1) the importance of guidance from healthcare professionals regarding online-information seeking; and 2) recommendations for the most useful online resources available.
05). On the other hand, chickens fed the Gln showed improved the relative weight of spleen and bursa, increased the lymphocyte percentage, number of proliferation peripheral blood T and B lymphocytes, and decreased the heterophil percentage, H/L ratio, and immune relevant gene expression in the jejunal and ileal mucosa compared with the measurements of these parameters in the SCC group (p less then 0.05). https://www.selleckchem.com/products/abtl-0812.html These results suggest that Gln as a feed additive could be effective for reducing the detrimental effects of Salmonella Enteritidis infection, and increase the intestinal immune barrier function of broilers.To determine if Cu injection during late gestation can affect fetal and postnatal growth, hematology and immune function of progeny, 70 multiparous pregnant Angus cows, at 219 ± 15 d of gestation, were ranked by BW and BCS and randomly assigned to one of two treatments Cu + (n = 35) in total 160 mg of Cu were administered subcutaneously in two moments (80 mg per moment) at 64 ± 15 d and 54 ± 15 d prepartum; and Cu- (n = 35), in total of 16 ml of sterile NaCl solution (9 g / l) were administered subcutaneously in two moments (8 ml per moment) at 64 ± 15 d and 54 ± 15 d prepartum. Calves from both treatments were weaned at 260 ± 15 d of age, male calves were separated from female calves and stockered on natural pastures until 690 ± 15 d of age, then placed into a feedlot for 104 d before slaughter. At the beginning of the experiment, cows Cu serum concentration was similar (P = 0.34) between treatments and these reflected a severe Cu deficiency (Cu + = 24.2 ± 1.5 μg/dl; Cu- = 22.2 ± 1.4 μg/dl). At calving, Cu serum concentration was greater (P 0.10) by treatments. In summary, inorganic Cu injection during late gestation in Cu deficient beef cows allows to increase Cu serum concentration in calves from birth to 160 d of age. This event was associated with an increase in ADG and a tendency to increase BW during the first 75 days of life. After 75 days of age, any effect on the offspring performance was not observed.Degeneration of the intervertebral disc (IVD) is associated with significant biochemical and morphological changes that include a loss of disc height, decreased water content and decreased cellularity. Cell delivery has been widely explored as a strategy to supplement the nucleus pulposus (NP) region of the degenerated IVD in both pre-clinical and clinical trials, using progenitor or primary cell sources. We previously demonstrated an ability for a polymer-peptide hydrogel, serving as a culture substrate, to promote adult NP cells to undergo a shift from a degenerative fibroblast-like state to a juvenile-like NP phenotype. In the current study, we evaluate the ability for this peptide-functionalized hydrogel to serve as a bioactive system for cell delivery, retention and preservation of a biosynthetic phenotype for primary IVD cells delivered to the rat caudal disc in an anular puncture degeneration model. Our data suggest that encapsulation of adult degenerative human NP cells in a stiff formulation of the hues in order to promote phenotypic expression and increase biosynthetic activity. The use of the in situ crosslinkable material integrated with the native IVD, presenting a system with adequate physical properties to support a degenerative disc. Aortic valve stenosis (AS) is a common, lethal cardiovascular disease. There is no cure except the valve replacement at last stage. Therefore, an understanding of the detail mechanism is imperative to prevent and intervene AS. Metabolic syndrome (MetS) is one of the major risk factors of AS whereas fructose overconsuming tops the list of MetS risk factors. However, whether the fructose under physiological level induces AS is currently unknown. The human valve interstitial cells (hVICs), a crucial source to develop calcification, were co-incubated with fructose at 2 or 20 mM to mimic the serum fructose at fasting or post-fructose consumption, respectively, for 24 hours. The cell proliferation was evaluated by WST-1 assays. The expressions of osteogenic and fibrotic proteins, PI3K/AKT signaling, insulin receptor substrate 1 and mitochondrial dynamic proteins were detected by Western blot analyses. The mitochondrial oxidative phosphorylation (OXPHOS) was examined by Seahorse analyzer. hVICs proliferation wect on the progression of AS. Traumatic brain injury (TBI) is a global public health problem, causing long-term burden to patients and caregivers. Patients and their families often resort to seeking online information regarding TBI management while awaiting formal health care consultations. Although this information is accessible and immediately available, little is known about the quality of online resources. We evaluated the accessibility, relevance, and readability of information regarding TBI from major online search engines. TBI-related search terms were entered into 2 online search engines (Google and Yahoo), and the first 30 websites per search were assessed for eligibility. Quality (DISCERN score, JAMA Benchmark score) and readability (Flesch-Kincaid Grade Level, Flesch Reading Ease Score) were assessed. Associations between search ranking, quality, and readability were evaluated. In total, 202 websites were evaluated with mean DISCERN score 36.5 ± 9.9/80, signifying poor global quality, and mean JAMA Benchmark score 2.8 ± 1.1/4. The majority required 9-12 years of education (113/202; 55.9%) according to Flesch-Kincaid Grade Level and categorized as "Difficult" on Flesch Reading Ease Score (94/202; 46.5%). Website quality was not associated with search ranking or readability. There is a paucity of high-quality online resources for patients with TBI. Herein, we highlight 1) the importance of guidance from healthcare professionals regarding online-information seeking; and 2) recommendations for the most useful online resources available. There is a paucity of high-quality online resources for patients with TBI. Herein, we highlight 1) the importance of guidance from healthcare professionals regarding online-information seeking; and 2) recommendations for the most useful online resources available.0 Comentários 0 Compartilhamentos 16 Visualizações 0 Anterior -
Objective Academics, gambling regulators, and the gambling industry increasingly espouse a shared responsibility view of preventing gambling harm, considering individual gamblers and external stakeholders (e.g., gambling industry employees, government regulators, and public health workers) to be jointly responsible for this task. This study is the third in a series exploring gamblers' beliefs about responsibility for preventing gambling harm. Method A sample of 4,336 subscribers to MGM Resorts International (MGM)'s loyalty card program as of January 2020 completed a web-based survey. Results We observed that 58.1% of participants only held individual gamblers responsible for helping prevent gambling harm. https://www.selleckchem.com/products/cb1954.html However, two factors increased the likelihood of holding a shared responsibility viewpoint and assigning responsibility to casinos for reducing gambling harm (a) scoring positive on the Brief Biosocial Gambling Screen (BBGS) or an Expanded Problem Gambling Screen (EPGS) and (b) being aware of GameSense, an onsite responsible gambling education program. Those who screened positive on the BBGS or EPGS also were more likely than their counterparts to deny personal responsibility for minimizing gambling harm to individual gamblers; that is, they were more likely to hold a purely external responsibility viewpoint. A meta-analytic year-over-year comparison revealed that compared to being aware of GameSense, screening positive for problem gambling was more strongly associated with assigning responsibility to casinos for minimizing gambling harm. Conclusions We discuss these findings in the context of self-determination theory and suggest implications for health promotion and best practices for message design in responsible gambling programs. (PsycInfo Database Record (c) 2021 APA, all rights reserved).When calculating the optical absorption spectra of molecular crystals from first principles, the influence of the crystalline environment on the excitations is of significant importance. For such systems, however, methods to describe the excitations accurately can be computationally prohibitive due to the relatively large system sizes involved. In this work, we demonstrate a method that allows optical absorption spectra to be computed both efficiently and at high accuracy. Our approach is based on the spectral warping method successfully applied to molecules in solvent. It involves calculating the absorption spectrum of a supercell of the full molecular crystal using semi-local time-dependent density functional theory (TDDFT), before warping the spectrum using a transformation derived from smaller-scale semi-local and hybrid TDDFT calculations on isolated dimers. We demonstrate the power of this method on three polymorphs of the well-known color polymorphic compound ROY and find that it outperforms both small-scale hybrid TDDFT dimer calculations and large-scale semi-local TDDFT supercell calculations, when compared to the experiment.A novel and efficient electrochemical radical δ-H sulfonylation reaction of para-quinone methides (p-QMs) and sodium sulfinates has been achieved under common laboratory conditions. In this strategy, a new C(sp2)-S bond was constructed for the synthesis of 4-((aryl,arylsulfonyl)methylene)-2,5-cyclohexadiene derivatives with a broad substrate scope, good functional group tolerance, and mild conditions. Further studies showed that the reaction had an excellent regional selectivity.Phase separation of DNA is involved in chromatin packing for the regulation of gene transcription. Visualization and manipulation of DNA phase separation in living cells present great challenges. Herein, we present a Ru(II) complex (Ru1) with high DNA binding affinity and DNA "light-switch" behavior that can induce and monitor DNA phase separation both in vitro and in living cells. Molecular dynamics simulations indicate that the two phen-PPh3 ligands with positively charged lipophilic triphenylphosphine substituents and flexible long alkyl chains in Ru1 play essential roles in the formation of multivalent binding forces between DNA molecules to induce DNA phase separation. Importantly, the unique environmental sensitive emission property of Ru1 enables direct visualization of the dynamic process of DNA phase separation in living cells by two-photon phosphorescent lifetime imaging. Moreover, Ru1 can change the gene expression pattern by modulating chromatin accessibility as demonstrated by integrating RNA-sequencing and transposase-accessible chromatin with high-throughput sequencing. In all, we present here the first small-molecule-based tracer and modulator of DNA phase separation in living cells and elucidate its impact on the chromatin state and transcriptome.Glucocorticoids are the first-line treatment for sensorineural hearing loss, but little is known about the mechanism of their protective effect or the impact of route of administration. The recent development of hollow microneedles enables safe and reliable sampling of perilymph for proteomic analysis. Using these microneedles, we investigate the effect of intratympanic (IT) versus intraperitoneal (IP) dexamethasone administration on guinea pig perilymph proteome. Guinea pigs were treated with IT dexamethasone (n = 6), IP dexamethasone (n = 8), or untreated for control (n = 8) 6 h prior to aspiration. The round window membrane (RWM) was accessed via a postauricular approach, and hollow microneedles were used to perforate the RWM and aspirate 1 μL of perilymph. Perilymph samples were analyzed by liquid chromatography-mass spectrometry-based label-free quantitative proteomics. Mass spectrometry raw data files have been deposited in an international public repository (MassIVE proteomics repository at https//massive.ucsd.edu/) under data set # MSV000086887. In the 22 samples of perilymph analyzed, 632 proteins were detected, including the inner ear protein cochlin, a perilymph marker. Of these, 14 proteins were modulated by IP, and three proteins were modulated by IT dexamethasone. In both IP and IT dexamethasone groups, VGF nerve growth factor inducible was significantly upregulated compared to control. The remaining adjusted proteins modulate neurons, inflammation, or protein synthesis. Proteome analysis facilitated by the use of hollow microneedles shows that route of dexamethasone administration impacts changes seen in perilymph proteome. Compared to IT administration, the IP route was associated with greater changes in protein expression, including proteins involved in neuroprotection, inflammatory pathway, and protein synthesis. Our findings show that microneedles can mediate safe and effective intracochlear sampling and hold promise for inner ear diagnostics.
Objective Academics, gambling regulators, and the gambling industry increasingly espouse a shared responsibility view of preventing gambling harm, considering individual gamblers and external stakeholders (e.g., gambling industry employees, government regulators, and public health workers) to be jointly responsible for this task. This study is the third in a series exploring gamblers' beliefs about responsibility for preventing gambling harm. Method A sample of 4,336 subscribers to MGM Resorts International (MGM)'s loyalty card program as of January 2020 completed a web-based survey. Results We observed that 58.1% of participants only held individual gamblers responsible for helping prevent gambling harm. https://www.selleckchem.com/products/cb1954.html However, two factors increased the likelihood of holding a shared responsibility viewpoint and assigning responsibility to casinos for reducing gambling harm (a) scoring positive on the Brief Biosocial Gambling Screen (BBGS) or an Expanded Problem Gambling Screen (EPGS) and (b) being aware of GameSense, an onsite responsible gambling education program. Those who screened positive on the BBGS or EPGS also were more likely than their counterparts to deny personal responsibility for minimizing gambling harm to individual gamblers; that is, they were more likely to hold a purely external responsibility viewpoint. A meta-analytic year-over-year comparison revealed that compared to being aware of GameSense, screening positive for problem gambling was more strongly associated with assigning responsibility to casinos for minimizing gambling harm. Conclusions We discuss these findings in the context of self-determination theory and suggest implications for health promotion and best practices for message design in responsible gambling programs. (PsycInfo Database Record (c) 2021 APA, all rights reserved).When calculating the optical absorption spectra of molecular crystals from first principles, the influence of the crystalline environment on the excitations is of significant importance. For such systems, however, methods to describe the excitations accurately can be computationally prohibitive due to the relatively large system sizes involved. In this work, we demonstrate a method that allows optical absorption spectra to be computed both efficiently and at high accuracy. Our approach is based on the spectral warping method successfully applied to molecules in solvent. It involves calculating the absorption spectrum of a supercell of the full molecular crystal using semi-local time-dependent density functional theory (TDDFT), before warping the spectrum using a transformation derived from smaller-scale semi-local and hybrid TDDFT calculations on isolated dimers. We demonstrate the power of this method on three polymorphs of the well-known color polymorphic compound ROY and find that it outperforms both small-scale hybrid TDDFT dimer calculations and large-scale semi-local TDDFT supercell calculations, when compared to the experiment.A novel and efficient electrochemical radical δ-H sulfonylation reaction of para-quinone methides (p-QMs) and sodium sulfinates has been achieved under common laboratory conditions. In this strategy, a new C(sp2)-S bond was constructed for the synthesis of 4-((aryl,arylsulfonyl)methylene)-2,5-cyclohexadiene derivatives with a broad substrate scope, good functional group tolerance, and mild conditions. Further studies showed that the reaction had an excellent regional selectivity.Phase separation of DNA is involved in chromatin packing for the regulation of gene transcription. Visualization and manipulation of DNA phase separation in living cells present great challenges. Herein, we present a Ru(II) complex (Ru1) with high DNA binding affinity and DNA "light-switch" behavior that can induce and monitor DNA phase separation both in vitro and in living cells. Molecular dynamics simulations indicate that the two phen-PPh3 ligands with positively charged lipophilic triphenylphosphine substituents and flexible long alkyl chains in Ru1 play essential roles in the formation of multivalent binding forces between DNA molecules to induce DNA phase separation. Importantly, the unique environmental sensitive emission property of Ru1 enables direct visualization of the dynamic process of DNA phase separation in living cells by two-photon phosphorescent lifetime imaging. Moreover, Ru1 can change the gene expression pattern by modulating chromatin accessibility as demonstrated by integrating RNA-sequencing and transposase-accessible chromatin with high-throughput sequencing. In all, we present here the first small-molecule-based tracer and modulator of DNA phase separation in living cells and elucidate its impact on the chromatin state and transcriptome.Glucocorticoids are the first-line treatment for sensorineural hearing loss, but little is known about the mechanism of their protective effect or the impact of route of administration. The recent development of hollow microneedles enables safe and reliable sampling of perilymph for proteomic analysis. Using these microneedles, we investigate the effect of intratympanic (IT) versus intraperitoneal (IP) dexamethasone administration on guinea pig perilymph proteome. Guinea pigs were treated with IT dexamethasone (n = 6), IP dexamethasone (n = 8), or untreated for control (n = 8) 6 h prior to aspiration. The round window membrane (RWM) was accessed via a postauricular approach, and hollow microneedles were used to perforate the RWM and aspirate 1 μL of perilymph. Perilymph samples were analyzed by liquid chromatography-mass spectrometry-based label-free quantitative proteomics. Mass spectrometry raw data files have been deposited in an international public repository (MassIVE proteomics repository at https//massive.ucsd.edu/) under data set # MSV000086887. In the 22 samples of perilymph analyzed, 632 proteins were detected, including the inner ear protein cochlin, a perilymph marker. Of these, 14 proteins were modulated by IP, and three proteins were modulated by IT dexamethasone. In both IP and IT dexamethasone groups, VGF nerve growth factor inducible was significantly upregulated compared to control. The remaining adjusted proteins modulate neurons, inflammation, or protein synthesis. Proteome analysis facilitated by the use of hollow microneedles shows that route of dexamethasone administration impacts changes seen in perilymph proteome. Compared to IT administration, the IP route was associated with greater changes in protein expression, including proteins involved in neuroprotection, inflammatory pathway, and protein synthesis. Our findings show that microneedles can mediate safe and effective intracochlear sampling and hold promise for inner ear diagnostics.0 Comentários 0 Compartilhamentos 16 Visualizações 0 Anterior -
Forest plots were used to present the pooled prevalence and odds ratio with a 95% confidence interval of meta-analysis using the random effect model. In total, 23 studies comprising 7,579 pregnant women across ten countries in Africa were included in this meta-analysis. The overall prevalence of seropositive toxoplasmosis among pregnant women in Africa was 51.01% (95% CI; 37.66, 64.34). The heterogeneity test showed that heterogeneity was high, I2 = 99.6%, P-value less then 0.001. The variables responsible for the source of heterogeneity were included from Cameroon, the Democratic Republic of Congo, and Ethiopia. Overall prevalence of toxoplasmosis in Africa showed that more than one-half of pregnant women were infected. The risk of acquiring toxoplasmosis infection during pregnancy is high; hence, preventive measures to avoid exposure of pregnant women to Toxoplasma infection should be strictly applied.Chromium toxicity is a major problem in agricultural soils that negatively affects a plant's metabolic activities. It reduces biochemical and antioxidant defence system's activities. In search of the solution to this problem a two-year pot experiment (completely randomized design with three replications), in three genetically different varieties of sorghum (SSG 59-3, HJ 513 and HJ 541) under Cr toxicity (2 and 4 ppm) was conducted to determine the effect of glycine betaine (50 and 100mM) and Arbuscular mycorrhizal fungi (AMF) on the antioxidant system (enzymes viz. superoxide dismutase, ascorbate peroxidase, catalase, glutathione reductase, peroxidase and metabolites viz. glutathione, ascorbate, proline, β-carotene) along with Cr accumulation and indices of oxidative stress parameters (polyphenol oxidase, hydrogen peroxide and malondialdehyde) at two growth stages (vegetative and grain filling). According to results; Cr stress (2 & 4 ppm) increased its accumulation and indices of oxidative stresses significantly (p≤0.05) in all varieties of sorghum at both growth stages. However, soil application of glycine betaine (GB) and AMF decreased Cr accumulation and indices of oxidative stress by increasing antioxidant enzymes and metabolites activities at both growth stages in all varieties. The combination of 100mM GB with AMF was observed most significant (p≤0.05) in decreasing oxidative stress and improved the antioxidant system's activities. The SSG 59-3 cultivar showed the lowest Cr accumulation (1.60 and 8.61 ppm), indices of oxidative stress and highest antioxidant system's activity among these three cultivars at both growth stages. Thus, SSG 59-3 was found most tolerant cultivars followed by HJ 513 and then HJ 541. These findings suggest that both GB and AMF, either individually or combined can play a positive role to reduce oxidative stress and increased antioxidant attributes under Cr toxicity in sorghum.This paper offers an economic model of the operation of multi-level marketing (MLM) firms in competitive and non-competitive markets. The model takes a recursive approach to analyse decision making at the distributor level in order to understand basic issues in the MLM market and firm structure. Specifically, it is shown that under reasonable assumptions MLM firms will have a limited structure. In cases where commissions increase with the number of levels, MLM firms will include no more than six to nine levels in equilibrium. In cases of fixed commissions, market conditions dictate a cap on the number of distributors. These conditions imply a limited "multi-level" structure. They also imply that the revenues of the median distributor are mainly a result of direct sales and not a result of commissions. The model also suggests that MLM firms will only arise where marketing costs are substantial, and that it is primarily individuals with small outside offers who choose to become distributors. Finally, the model provides a formula that calculates market prices for a monopoly MLM firm.Measurement while drilling is an important part of the intelligent development of coal mines. The main purpose of this paper is to comprehensively analyze the response characteristics of borehole drilling parameters and find a better method to predict rock mechanical properties based on drilling parameters. Firstly, six concrete blocks and multiple specimens were prepared with different material ratios. Next, the concrete specimens were tested for mechanical properties in the laboratory. Meanwhile, the displacement, rotation speed, torque, and sound pressure level (SPL) were observed during the drilling of the concrete blocks. Finally, the response characteristics of drilling parameters such as rotation speed, rate of penetration (ROP), torque, and SPL were analyzed. Besides, multiple prediction models of rock mechanical parameters were obtained by data analysis. The research results indicate that the drilling process can be classified into the initial stage of drilling (fast speed) and the steady stage of drilling (slow speed). The torque work ratio accounts for more than 99%, which increases with the increase in rock strength. The penetration depth per revolution and torque work ratio are significantly related to rock uniaxial compressive strength, Brazilian tensile strength, cohesion, and elastic modulus. The ROP is the best choice for estimating rock mechanical parameters. This research provides an important reference for laboratory rock mechanics parameter testing and geological features detection based on drilling parameters.
Residents in difficulty are a major cause for concern in medical education, with a prevalence of 7-15%. https://www.selleckchem.com/products/gsk621.html They are often detected late in their training and cannot make use of remediation plans. Nowadays, most training hospitals in Switzerland do not have a specific program to identify and manage residents in difficulty. The aim of the study was to explore the challenges perceived by physicians regarding the process of identifying, diagnosing, and supporting residents in difficulty in a structured and programmatic way. We explored perceptions of physicians at different hierarchical levels (residents (R), Chief residents (CR), attending physicians (A), Chief Physician (CP)) in order to better understand these challenges.
We conducted an exploratory qualitative study between December 2015 and July 2016. We asked volunteers from the Primary Care Division of the Geneva University Hospitals to partake to three focus groups (with CR, A, R) and one interview with the division's CP. We transcribed, coded, and qualitatively analyzed the three focus groups and the interview, using a content thematic approach and Fishbein's conceptual framework.
Forest plots were used to present the pooled prevalence and odds ratio with a 95% confidence interval of meta-analysis using the random effect model. In total, 23 studies comprising 7,579 pregnant women across ten countries in Africa were included in this meta-analysis. The overall prevalence of seropositive toxoplasmosis among pregnant women in Africa was 51.01% (95% CI; 37.66, 64.34). The heterogeneity test showed that heterogeneity was high, I2 = 99.6%, P-value less then 0.001. The variables responsible for the source of heterogeneity were included from Cameroon, the Democratic Republic of Congo, and Ethiopia. Overall prevalence of toxoplasmosis in Africa showed that more than one-half of pregnant women were infected. The risk of acquiring toxoplasmosis infection during pregnancy is high; hence, preventive measures to avoid exposure of pregnant women to Toxoplasma infection should be strictly applied.Chromium toxicity is a major problem in agricultural soils that negatively affects a plant's metabolic activities. It reduces biochemical and antioxidant defence system's activities. In search of the solution to this problem a two-year pot experiment (completely randomized design with three replications), in three genetically different varieties of sorghum (SSG 59-3, HJ 513 and HJ 541) under Cr toxicity (2 and 4 ppm) was conducted to determine the effect of glycine betaine (50 and 100mM) and Arbuscular mycorrhizal fungi (AMF) on the antioxidant system (enzymes viz. superoxide dismutase, ascorbate peroxidase, catalase, glutathione reductase, peroxidase and metabolites viz. glutathione, ascorbate, proline, β-carotene) along with Cr accumulation and indices of oxidative stress parameters (polyphenol oxidase, hydrogen peroxide and malondialdehyde) at two growth stages (vegetative and grain filling). According to results; Cr stress (2 & 4 ppm) increased its accumulation and indices of oxidative stresses significantly (p≤0.05) in all varieties of sorghum at both growth stages. However, soil application of glycine betaine (GB) and AMF decreased Cr accumulation and indices of oxidative stress by increasing antioxidant enzymes and metabolites activities at both growth stages in all varieties. The combination of 100mM GB with AMF was observed most significant (p≤0.05) in decreasing oxidative stress and improved the antioxidant system's activities. The SSG 59-3 cultivar showed the lowest Cr accumulation (1.60 and 8.61 ppm), indices of oxidative stress and highest antioxidant system's activity among these three cultivars at both growth stages. Thus, SSG 59-3 was found most tolerant cultivars followed by HJ 513 and then HJ 541. These findings suggest that both GB and AMF, either individually or combined can play a positive role to reduce oxidative stress and increased antioxidant attributes under Cr toxicity in sorghum.This paper offers an economic model of the operation of multi-level marketing (MLM) firms in competitive and non-competitive markets. The model takes a recursive approach to analyse decision making at the distributor level in order to understand basic issues in the MLM market and firm structure. Specifically, it is shown that under reasonable assumptions MLM firms will have a limited structure. In cases where commissions increase with the number of levels, MLM firms will include no more than six to nine levels in equilibrium. In cases of fixed commissions, market conditions dictate a cap on the number of distributors. These conditions imply a limited "multi-level" structure. They also imply that the revenues of the median distributor are mainly a result of direct sales and not a result of commissions. The model also suggests that MLM firms will only arise where marketing costs are substantial, and that it is primarily individuals with small outside offers who choose to become distributors. Finally, the model provides a formula that calculates market prices for a monopoly MLM firm.Measurement while drilling is an important part of the intelligent development of coal mines. The main purpose of this paper is to comprehensively analyze the response characteristics of borehole drilling parameters and find a better method to predict rock mechanical properties based on drilling parameters. Firstly, six concrete blocks and multiple specimens were prepared with different material ratios. Next, the concrete specimens were tested for mechanical properties in the laboratory. Meanwhile, the displacement, rotation speed, torque, and sound pressure level (SPL) were observed during the drilling of the concrete blocks. Finally, the response characteristics of drilling parameters such as rotation speed, rate of penetration (ROP), torque, and SPL were analyzed. Besides, multiple prediction models of rock mechanical parameters were obtained by data analysis. The research results indicate that the drilling process can be classified into the initial stage of drilling (fast speed) and the steady stage of drilling (slow speed). The torque work ratio accounts for more than 99%, which increases with the increase in rock strength. The penetration depth per revolution and torque work ratio are significantly related to rock uniaxial compressive strength, Brazilian tensile strength, cohesion, and elastic modulus. The ROP is the best choice for estimating rock mechanical parameters. This research provides an important reference for laboratory rock mechanics parameter testing and geological features detection based on drilling parameters. Residents in difficulty are a major cause for concern in medical education, with a prevalence of 7-15%. https://www.selleckchem.com/products/gsk621.html They are often detected late in their training and cannot make use of remediation plans. Nowadays, most training hospitals in Switzerland do not have a specific program to identify and manage residents in difficulty. The aim of the study was to explore the challenges perceived by physicians regarding the process of identifying, diagnosing, and supporting residents in difficulty in a structured and programmatic way. We explored perceptions of physicians at different hierarchical levels (residents (R), Chief residents (CR), attending physicians (A), Chief Physician (CP)) in order to better understand these challenges. We conducted an exploratory qualitative study between December 2015 and July 2016. We asked volunteers from the Primary Care Division of the Geneva University Hospitals to partake to three focus groups (with CR, A, R) and one interview with the division's CP. We transcribed, coded, and qualitatively analyzed the three focus groups and the interview, using a content thematic approach and Fishbein's conceptual framework.0 Comentários 0 Compartilhamentos 17 Visualizações 0 Anterior -
IEA patients had more frequently postoperative delirium and stayed for longer at PACU and at the hospital.
IEA was a common phenomenon after anesthesia for elective curative surgery for cancer. Patients with IEA were older and had more comorbidities and a higher surgical risk. Patients with IEA had a less frequent complete recovery on the PD and in AD domains, and a more frequent complete recovery on the ED.
IEA was a common phenomenon after anesthesia for elective curative surgery for cancer. Patients with IEA were older and had more comorbidities and a higher surgical risk. Patients with IEA had a less frequent complete recovery on the PD and in AD domains, and a more frequent complete recovery on the ED.
Neuropathic pain is common in the general population worldwide and Brazil. The painDETECT questionnaire is a notable instrument for screening on neuropathic pain. A Brazilian version of the painDETECT is necessary to broaden the possibilities of identification of neuropathic pain in the Brazilian population for the proper diagnosis and treatment. The current study aimed to perform the translation and cross-cultural adaptation of the painDETECT into the Portuguese language of Brazil.
A cross-cultural adaptation study was conducted in 11 stages according to standard procedures. Descriptive statistics were performed. The internal consistency of the questionnaire was assessed using Cronbach's Alpha test (α).
Four translators, 10 experts, and 30 patients participated in the study. The expert committee adapted five out of nine items (item 2, 3, 6, 8, and 10) to the Brazilian context. The pretesting phase showed good internal consistency (α=0.74) for the nine items, including the pain pattern and the body chart domains. The Cronbach's α of the instrument with seven descriptor items of pain was 0.83.
The painDETECT was cross-culturally adapted into a Brazilian context and can be used to identify neuropathic components in pain of Brazilian patients.
PainDETECT is available for Brazilians to identify neuropathic components in pain.
PainDETECT is available for Brazilians to identify neuropathic components in pain.
Sparse representation-based classification (SRC) has more advantages in motor imagery EEG pattern recognition, and the quality of dictionary construction directly determines the performance of SRC. In this paper, we proposed a two-dimensional dictionary optimization (TDDO) method to directly improve the performance of SRC.
Firstly, an initial dictionary was constructed with multi-band features extracted by filter band common spatial pattern (FBCSP). Then Lasso regression is used to select significant features in each atom synchronously in the horizontal direction, and the KNN-based method is used to clean up noise atoms in the vertical direction. Finally, an SRC method by training samples linearly representing test samples was implemented in classification.
The results show the necessity and rationality of TDDO-SRC method. The highest average classification accuracy of 86.5% and 92.4% is obtained on two public datasets.
The proposed method has more superior classification accuracy compared to traditional methods and existing winners' methods.
The quality of dictionary construction has a great impact on the robustness of SRC. And compared with the original SRC, the classification accuracy of the optimized TDDO-SRC is greatly improved.
The quality of dictionary construction has a great impact on the robustness of SRC. And compared with the original SRC, the classification accuracy of the optimized TDDO-SRC is greatly improved.As expressed by the "Healthy is Up" metaphor, conceptual metaphor theory argues that the representation of health is commonly associated with high verticality because, typically, people stay upright when they are healthy whereas illness may force them to lie down. Along this line of argument, this research is the first to empirically explore the metaphorical representation of healthy food in terms of verticality. Across five experiments (N = 714), this article first demonstrates that people are faster to pair healthy food with up than down in an implicit association test (Study 1, supporting a metaphorical congruency effect). Then, it shows that people associate healthy food with high verticality and unhealthy food with low verticality by placing healthy food up high and unhealthy food low down along the vertical axis, and by preferring a food pyramid that depicts healthy food at the top rather than at the bottom (Studies 2a, 2b and 3, supporting an abstract-to-concrete effect). Last, this research finds that people judge a food product as healthier when it is pictured from an upward-looking angle than when it is pictured from a downward-looking angle (Study 4, supporting a concrete-to-abstract effect). Further analyses test the interaction between individual differences in self-control and the effects of the "Healthy is Up" metaphor in Studies 2a, 2b, 3 and 4. The article concludes with a discussion of the theoretical and practical implications of this research.Ischemic white matter damage (WMD) is increasingly being considered as one of the major causes of neurological disorders in older adults and preterm infants. The functional consequences of WMD triggers a progressive cognitive decline and dementia particularly in patients with ischemic cerebrovascular diseases. Despite the major stride made in the pathogenesis mechanisms of ischemic WMD in the last century, effective medications are still not available. So, there is an urgent need to explore a promising approach to slow the progression or modify its pathological course. In this review, we discussed the animal models, the pathological mechanisms and the potential therapeutic agents for ischemic WMD. https://www.selleckchem.com/products/17-AAG(Geldanamycin).html The development in the studies of anti-oxidants, free radical scavengers, anti-inflammatory or anti-apoptotic agents and neurotrophic factors in ischemic WMD were summarized. The agents which either alleviate oligodendrocyte damage or promote its proliferation or differentiation may have potential value for the treatment of ischemic WMD. Moreover, drugs with multifaceted protective activities or a wide therapeutic window may be optimal for clinical translation.
IEA patients had more frequently postoperative delirium and stayed for longer at PACU and at the hospital. IEA was a common phenomenon after anesthesia for elective curative surgery for cancer. Patients with IEA were older and had more comorbidities and a higher surgical risk. Patients with IEA had a less frequent complete recovery on the PD and in AD domains, and a more frequent complete recovery on the ED. IEA was a common phenomenon after anesthesia for elective curative surgery for cancer. Patients with IEA were older and had more comorbidities and a higher surgical risk. Patients with IEA had a less frequent complete recovery on the PD and in AD domains, and a more frequent complete recovery on the ED. Neuropathic pain is common in the general population worldwide and Brazil. The painDETECT questionnaire is a notable instrument for screening on neuropathic pain. A Brazilian version of the painDETECT is necessary to broaden the possibilities of identification of neuropathic pain in the Brazilian population for the proper diagnosis and treatment. The current study aimed to perform the translation and cross-cultural adaptation of the painDETECT into the Portuguese language of Brazil. A cross-cultural adaptation study was conducted in 11 stages according to standard procedures. Descriptive statistics were performed. The internal consistency of the questionnaire was assessed using Cronbach's Alpha test (α). Four translators, 10 experts, and 30 patients participated in the study. The expert committee adapted five out of nine items (item 2, 3, 6, 8, and 10) to the Brazilian context. The pretesting phase showed good internal consistency (α=0.74) for the nine items, including the pain pattern and the body chart domains. The Cronbach's α of the instrument with seven descriptor items of pain was 0.83. The painDETECT was cross-culturally adapted into a Brazilian context and can be used to identify neuropathic components in pain of Brazilian patients. PainDETECT is available for Brazilians to identify neuropathic components in pain. PainDETECT is available for Brazilians to identify neuropathic components in pain. Sparse representation-based classification (SRC) has more advantages in motor imagery EEG pattern recognition, and the quality of dictionary construction directly determines the performance of SRC. In this paper, we proposed a two-dimensional dictionary optimization (TDDO) method to directly improve the performance of SRC. Firstly, an initial dictionary was constructed with multi-band features extracted by filter band common spatial pattern (FBCSP). Then Lasso regression is used to select significant features in each atom synchronously in the horizontal direction, and the KNN-based method is used to clean up noise atoms in the vertical direction. Finally, an SRC method by training samples linearly representing test samples was implemented in classification. The results show the necessity and rationality of TDDO-SRC method. The highest average classification accuracy of 86.5% and 92.4% is obtained on two public datasets. The proposed method has more superior classification accuracy compared to traditional methods and existing winners' methods. The quality of dictionary construction has a great impact on the robustness of SRC. And compared with the original SRC, the classification accuracy of the optimized TDDO-SRC is greatly improved. The quality of dictionary construction has a great impact on the robustness of SRC. And compared with the original SRC, the classification accuracy of the optimized TDDO-SRC is greatly improved.As expressed by the "Healthy is Up" metaphor, conceptual metaphor theory argues that the representation of health is commonly associated with high verticality because, typically, people stay upright when they are healthy whereas illness may force them to lie down. Along this line of argument, this research is the first to empirically explore the metaphorical representation of healthy food in terms of verticality. Across five experiments (N = 714), this article first demonstrates that people are faster to pair healthy food with up than down in an implicit association test (Study 1, supporting a metaphorical congruency effect). Then, it shows that people associate healthy food with high verticality and unhealthy food with low verticality by placing healthy food up high and unhealthy food low down along the vertical axis, and by preferring a food pyramid that depicts healthy food at the top rather than at the bottom (Studies 2a, 2b and 3, supporting an abstract-to-concrete effect). Last, this research finds that people judge a food product as healthier when it is pictured from an upward-looking angle than when it is pictured from a downward-looking angle (Study 4, supporting a concrete-to-abstract effect). Further analyses test the interaction between individual differences in self-control and the effects of the "Healthy is Up" metaphor in Studies 2a, 2b, 3 and 4. The article concludes with a discussion of the theoretical and practical implications of this research.Ischemic white matter damage (WMD) is increasingly being considered as one of the major causes of neurological disorders in older adults and preterm infants. The functional consequences of WMD triggers a progressive cognitive decline and dementia particularly in patients with ischemic cerebrovascular diseases. Despite the major stride made in the pathogenesis mechanisms of ischemic WMD in the last century, effective medications are still not available. So, there is an urgent need to explore a promising approach to slow the progression or modify its pathological course. In this review, we discussed the animal models, the pathological mechanisms and the potential therapeutic agents for ischemic WMD. https://www.selleckchem.com/products/17-AAG(Geldanamycin).html The development in the studies of anti-oxidants, free radical scavengers, anti-inflammatory or anti-apoptotic agents and neurotrophic factors in ischemic WMD were summarized. The agents which either alleviate oligodendrocyte damage or promote its proliferation or differentiation may have potential value for the treatment of ischemic WMD. Moreover, drugs with multifaceted protective activities or a wide therapeutic window may be optimal for clinical translation.0 Comentários 0 Compartilhamentos 20 Visualizações 0 Anterior -
Collectively, the combined design principles adopted for carrier-free nanodrugs construction in this study aimed at targeting different intracellular organelles for facilitating ROS production and DNA disruption can be extended to other carrier-free nanodrugs-dependent therapeutic systems.Pericytes have the potential to be developed as a cell therapy for the treatment of wounds; however, the efficacy of any cell therapy relies on the successful delivery of intact and functioning cells. https://www.selleckchem.com/ Here, the effect of delivering pericytes on wound repair was assessed alongside the development of a surface-functionalized pericyte patch. Plasma polymerization (PP) was used to functionalize the surface of silicone patches with heptylamine (HA) or acrylic acid (AA) monomers. Human pericytes were subsequently delivered to murine excisional wounds by intradermal injection or using the pericyte-laden patches and the comparative effects on wound healing, inflammation and revascularization determined. The AA surface provided the superior transfer of the cells to de-epidermized dermis. Excisional murine wounds treated either with pericytes injected directly into the wound or with the pericyte-laden AA patches showed improved healing with decreased neutrophil infiltration and reduced numbers of macrophages in the wounds. Pericyte delivery also enhanced angiogenesis through a mechanism independent of VEGF signalling. Pericytes, when delivered to wounds, improved healing responses by dampening inflammation and promoting angiogenesis. Delivery of pericytes using PP-AA-functionalized patches was equally as effective as direct injection of pericytes into wounds. Pericyte-functionalized dressings may therefore be a clinically relevant approach for the treatment of wounds.Andrographolide (AG) has favorable anti-inflammatory and antioxidative capacity. However, it has low bioavailability due to high lipophilicity and can be easily cleared by the synovial fluid after intra-articular injection, leading to low therapeutic efficiency in osteoarthritis (OA). Herein, we designed a nano-sized pH-responsive drug delivery system (DDS) for OA treatment by using modified mesoporous silica nanoparticles (MSNs) with pH-responsive polyacrylic acid (PAA) for loading of AG to form AG@MSNs-PAA nanoplatform. The nanoparticles have uniform size (∼120 nm), high drug loading efficiency (22.38 ± 0.71%) and pH-responsive properties, beneficial to sustained release in OA environment. Compared with AG, AG@MSNs-PAA showed enhanced antiarthritic efficacy and chondro-protective capacity based on IL-1β-stimulated chondrocytes and anterior cruciate ligament transection-induced rat OA model, as demonstrated by lower expression of inflammatory factors and better prevention of proteoglycan loss. Therefore, the AG@MSNs-PAA nanoplatform may be developed as a promising OA-specific and on-demand DDS.
To assess the diagnostic accuracy of antigen compared with reverse transcriptase (RT)-PCR testing in an asymptomatic athlete screening programme and to monitor infection in college athletes.
Quidel Sofia-2 SARS-CoV-2 Antigen Tests were performed daily before sports participation for football, basketball, wrestling and water polo from 29 September 2020 to 28 February 2021. Paired RT-PCR and antigen tests were performed at least once a week. Positive antigen tests were confirmed with RT-PCR.
81 175 antigen and 42 187 RT-PCR tests were performed, including 23 462 weekly paired antigen/RT-PCR screening tests in 1931 athletes. One hundred and seventy-two athletes had a positive screening RT-PCR (0.4%), of which 83 (48%) occurred on paired testing days. The sensitivity of antigen tests varied with the frequency of RT-PCR testing and prevalence of COVID-19. The sensitivity of antigen testing was 35.7% (95% CI 17% to 60%) and specificity 99.8% (95% CI 99.7% to 99.9%) with once-a-week RT-PCR testing after adjusting for school prevalence. Daily antigen testing was similar to RT-PCR testing two to three times a week in identifying infection. Antigen testing identified infection before the next scheduled PCR on 89 occasions and resulted in 234 days where potentially infectious athletes were isolated before they would have been isolated with RT-PCR testing alone. Two athletic-related outbreaks occurred; 86% of total infections were community acquired.
Antigen testing has high specificity with a short turnaround time but is not as sensitive as RT-PCR. Daily antigen testing or RT-PCR testing two to three times a week is similar. There are benefits and drawbacks to each testing approach.
Antigen testing has high specificity with a short turnaround time but is not as sensitive as RT-PCR. Daily antigen testing or RT-PCR testing two to three times a week is similar. There are benefits and drawbacks to each testing approach.
To report the person-to-staff transmission of COVID-19 with the implementation of a bubble concept that included testing, hygiene, distancing and monitoring strategies to mitigate risks.
A prospective case series included all staff on-site involved in the Football Club World Cup. The tournament was conducted within 'bubbles'. All personnel travelling to the tournament were required to be in possession of a negative RT-PCR test within 72 hours of arrival and subjected to a testing schedule during the tournament. Each location was assigned a COVID-19 protocol enforcement officer to ensure adherence to regular testing, hygiene measures, physical distancing and daily symptom reporting (via ScribePro app).
The study involved 70 recruited staff with a combined 1321 test days on the symptom checker app. The mean number of days completed on the symptom checker app was 18.87 days (range 7-28). Of the five questions asked as part of the daily symptom checker, only one was answered positively (0.015%). This individual was isolated, assessed within 20 min and tested. The initial diagnosis was likely a non-COVID-19-related viral illness. Further testing returned three negative tests during the remainder of the tournament.
There was no person-to-staff transmission of COVID-19 during the tournament within our sample. The organisation of a sporting tournament during the COVID-19 pandemic is possible with risk mitigation strategies. These strategies include setting up a bubble with regular testing, hygiene measures, physical distancing and daily symptom reporting.
There was no person-to-staff transmission of COVID-19 during the tournament within our sample. The organisation of a sporting tournament during the COVID-19 pandemic is possible with risk mitigation strategies. These strategies include setting up a bubble with regular testing, hygiene measures, physical distancing and daily symptom reporting.
Collectively, the combined design principles adopted for carrier-free nanodrugs construction in this study aimed at targeting different intracellular organelles for facilitating ROS production and DNA disruption can be extended to other carrier-free nanodrugs-dependent therapeutic systems.Pericytes have the potential to be developed as a cell therapy for the treatment of wounds; however, the efficacy of any cell therapy relies on the successful delivery of intact and functioning cells. https://www.selleckchem.com/ Here, the effect of delivering pericytes on wound repair was assessed alongside the development of a surface-functionalized pericyte patch. Plasma polymerization (PP) was used to functionalize the surface of silicone patches with heptylamine (HA) or acrylic acid (AA) monomers. Human pericytes were subsequently delivered to murine excisional wounds by intradermal injection or using the pericyte-laden patches and the comparative effects on wound healing, inflammation and revascularization determined. The AA surface provided the superior transfer of the cells to de-epidermized dermis. Excisional murine wounds treated either with pericytes injected directly into the wound or with the pericyte-laden AA patches showed improved healing with decreased neutrophil infiltration and reduced numbers of macrophages in the wounds. Pericyte delivery also enhanced angiogenesis through a mechanism independent of VEGF signalling. Pericytes, when delivered to wounds, improved healing responses by dampening inflammation and promoting angiogenesis. Delivery of pericytes using PP-AA-functionalized patches was equally as effective as direct injection of pericytes into wounds. Pericyte-functionalized dressings may therefore be a clinically relevant approach for the treatment of wounds.Andrographolide (AG) has favorable anti-inflammatory and antioxidative capacity. However, it has low bioavailability due to high lipophilicity and can be easily cleared by the synovial fluid after intra-articular injection, leading to low therapeutic efficiency in osteoarthritis (OA). Herein, we designed a nano-sized pH-responsive drug delivery system (DDS) for OA treatment by using modified mesoporous silica nanoparticles (MSNs) with pH-responsive polyacrylic acid (PAA) for loading of AG to form AG@MSNs-PAA nanoplatform. The nanoparticles have uniform size (∼120 nm), high drug loading efficiency (22.38 ± 0.71%) and pH-responsive properties, beneficial to sustained release in OA environment. Compared with AG, AG@MSNs-PAA showed enhanced antiarthritic efficacy and chondro-protective capacity based on IL-1β-stimulated chondrocytes and anterior cruciate ligament transection-induced rat OA model, as demonstrated by lower expression of inflammatory factors and better prevention of proteoglycan loss. Therefore, the AG@MSNs-PAA nanoplatform may be developed as a promising OA-specific and on-demand DDS. To assess the diagnostic accuracy of antigen compared with reverse transcriptase (RT)-PCR testing in an asymptomatic athlete screening programme and to monitor infection in college athletes. Quidel Sofia-2 SARS-CoV-2 Antigen Tests were performed daily before sports participation for football, basketball, wrestling and water polo from 29 September 2020 to 28 February 2021. Paired RT-PCR and antigen tests were performed at least once a week. Positive antigen tests were confirmed with RT-PCR. 81 175 antigen and 42 187 RT-PCR tests were performed, including 23 462 weekly paired antigen/RT-PCR screening tests in 1931 athletes. One hundred and seventy-two athletes had a positive screening RT-PCR (0.4%), of which 83 (48%) occurred on paired testing days. The sensitivity of antigen tests varied with the frequency of RT-PCR testing and prevalence of COVID-19. The sensitivity of antigen testing was 35.7% (95% CI 17% to 60%) and specificity 99.8% (95% CI 99.7% to 99.9%) with once-a-week RT-PCR testing after adjusting for school prevalence. Daily antigen testing was similar to RT-PCR testing two to three times a week in identifying infection. Antigen testing identified infection before the next scheduled PCR on 89 occasions and resulted in 234 days where potentially infectious athletes were isolated before they would have been isolated with RT-PCR testing alone. Two athletic-related outbreaks occurred; 86% of total infections were community acquired. Antigen testing has high specificity with a short turnaround time but is not as sensitive as RT-PCR. Daily antigen testing or RT-PCR testing two to three times a week is similar. There are benefits and drawbacks to each testing approach. Antigen testing has high specificity with a short turnaround time but is not as sensitive as RT-PCR. Daily antigen testing or RT-PCR testing two to three times a week is similar. There are benefits and drawbacks to each testing approach. To report the person-to-staff transmission of COVID-19 with the implementation of a bubble concept that included testing, hygiene, distancing and monitoring strategies to mitigate risks. A prospective case series included all staff on-site involved in the Football Club World Cup. The tournament was conducted within 'bubbles'. All personnel travelling to the tournament were required to be in possession of a negative RT-PCR test within 72 hours of arrival and subjected to a testing schedule during the tournament. Each location was assigned a COVID-19 protocol enforcement officer to ensure adherence to regular testing, hygiene measures, physical distancing and daily symptom reporting (via ScribePro app). The study involved 70 recruited staff with a combined 1321 test days on the symptom checker app. The mean number of days completed on the symptom checker app was 18.87 days (range 7-28). Of the five questions asked as part of the daily symptom checker, only one was answered positively (0.015%). This individual was isolated, assessed within 20 min and tested. The initial diagnosis was likely a non-COVID-19-related viral illness. Further testing returned three negative tests during the remainder of the tournament. There was no person-to-staff transmission of COVID-19 during the tournament within our sample. The organisation of a sporting tournament during the COVID-19 pandemic is possible with risk mitigation strategies. These strategies include setting up a bubble with regular testing, hygiene measures, physical distancing and daily symptom reporting. There was no person-to-staff transmission of COVID-19 during the tournament within our sample. The organisation of a sporting tournament during the COVID-19 pandemic is possible with risk mitigation strategies. These strategies include setting up a bubble with regular testing, hygiene measures, physical distancing and daily symptom reporting.0 Comentários 0 Compartilhamentos 21 Visualizações 0 Anterior
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